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ROOF SOAPFOLDING. N0. 283,908. Patented Aug. 28, 188 3. 4

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- A. R. MANLEY.

ROOF. SOAFFOLDING.

No. 283,908. Patented Aug 28, 1888.

of A.

UNITED STATES PATENT OFFICE.

AARON n. MANLEY, or SAN Jose, CALIFORNIA.

ROOF-SCAFFOLDING.

SPECIFICATION forming part of Letters Patent No. 283,908, dated August 28, 1883. Application filed May 26, 1883. (No model.)

To all whom 'it may concern.

Be it known that I, AARON R. ll/IANLEY, of San J os, Santa Clara county, Stateof California, have invented an Improvement in Roof-Scaffoldings; and I do hereby declare the following to be a full, clear, and exact description thereof. 7

My invention relates to a device which I call a roofscafiolding, and it consists of plates to which boards .for a scaffolding may be fixed, and to one end of which is hinged an adjustable brace, while to the other end is hinged a bar or plate, which lies along the inclined roof, and has a gage-bar fixed to it, this inclined bar and the brace serving to level the one which supports the staging, and adjust it to a roof of any pitch, as will be more fully explained by reference to the accompanying drawings, in which- Figure 1 is a view of my device. a perspective view.

In laying shingles, building chimneys, and doing other similar work upon roofs, it is necessary to have horizontal stagings to work from, and those are usually constructed by nailing temporary wooden supports to the roof and then laying boards or planks upon them. This is inconvenient, as it takes time to change them from place to place, and causes some damage to the roof. 7

In my invention, A is a bar or plate, having screw-holes by which a plank or board may be permanently attached to it. end of this bar is a hinge-joint, by which a slotted bar, B, is connected with it, and a sec ond bar, 0, is attached to the bar B by a screw and thumb-nut, D, so that it can be ad j nsted by means of the slot and made to overlap upon the bar B more or less. The second bar, 0, is also slotted, to allow the lower end of a brace, E, to pass through it. This brace is made extensible, and is hinged to the opposite end of the bar A from the bar 0. In the present case I have shown the extensions as effected by forming a screw-thread upon the part E, which is hinged to the end The part E is hollow and threaded internally, so that the part E screws into it, and the brace may thus belengthened or short- Fig. 2 1s ened at will.

At one are as many of these supporting hinged brackets secured to the staging board or plank as may be necessary, and the bars B 0 lie upon the roof in a line from the ridge to the eaves, or in the plane of the incline. Sharp teeth'or points a a project from the lower face of the bar 13, so as to enter the roof and prevent it from sliding downward. The brace E passes through the slot 1) in the bar 0, having a neck which will slide along the slot at will, while the lower end, below the bar 0, is made broad enough not to draw through the slot unless turned edgewise, and is sharpened, so that it will enter the roof, and thus hold itself at any desired point. This extension-bar E E is lengthened or shortened to suit the angle of the roof, and is moved alongthe slot 1) to such a point as will level the staging when it is set firmly into the roof, and the staging is ready for work.

WVhen the roof is to be shingled, the length of overlap of the shingles is usually marked by means of a chalk-line before laying each course. In my invention the bar C, which overlaps the bar 13, or rather extends up beneath it, is of su'fficient thickness so that its upper end forms a shoulder, which will serve as a gage for each course when the staging is set. The amount of overlap being determined, the bar 0 is adjusted upon the bar B by its thumb-screw, and the shoulder will then always give the same distance.

This staging can be easily placed or moved from point to point with but little delay or loss of time, and no damage to the roof. It is firm and secure when in place.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A roof staging or scaffolding consisting of plank-supporting bars A, having hinged to one end spiked or toothed bars B O, which lie upon the inclined surface, and to the opposite end extension adjustable braces E E, by which they are supported and leveled, sub

stantially as herein described.

2. In a roof staging or scaffolding, the horizontal planksupporting bars, having eXtensiou-braces hinged to their outer ends, and passing through guiding-slots b in the inclined extensible bars, which are hinged to the opposite end and lie upon the roof-surface subv- In witness whereof I have hereunto set my IO stantially as herein described. hand.

3. In a roof staging or scaffolding, the hori V zontal plank-supporting bars, having exten- AARON R. MANLEY.

5 sion-br-aces hinged to their outer ends and the inclined toothed bars 13, hinged to their inner Witnesses: ends, so as to lie upon the roof-surface, in P. B. SULLIVAN, combination with the adjustable extension and D. A. PORTER. gage bar 0, substantially as herein described. r 

